Osg VG441-3127 Square End Mill 5/16 in 4 Flute Solid Carbide

Product Description

The OSG VG441-3127 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 5/16 inch cutting diameter, a 1-5/8 inch length of cut, and a 4 inch overall length. The four-flute, spiral-flute geometry with a 35-degree helix angle promotes efficient chip evacuation and smooth cutting action. A titanium aluminum nitride (TiAlN) finish increases surface hardness and heat resistance, extending tool life in demanding cutting conditions. The micrograin carbide substrate provides rigidity and wear resistance. This end mill is centercutting, allowing plunge entry, and runs with right-hand cut and right-hand flute orientation.

The VG441-3127 is suited for milling ferrous and non-ferrous metals in CNC machining centers and manual mills. Its 5/16 inch shank diameter fits standard ER collets and milling chucks. The variable index design reduces harmonic vibration during high-speed passes, making it appropriate for finishing cuts and contour work in die and mold, aerospace component, and general precision-machining environments. It is a single-end tool intended for professional machine shop use.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• TiAlN coating for elevated heat resistance and extended tool life
• Four-flute spiral geometry with 35-degree helix for efficient chip evacuation
• Centercutting design allows direct plunge entry
• Variable index flute spacing reduces chatter and harmonic vibration
• Right-hand cut and right-hand flute orientation for standard CNC and manual mill setups

Compatibility

Designed as an OEM-style solid carbide square end mill in the OSG VG441 series, compatible with standard 5/16 inch ER collets and milling chucks on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the collet or chuck. Tighten the collet nut to the tool holder manufacturer's specified torque using the appropriate spanner wrench. Verify runout with a dial indicator before beginning any cutting operation to prevent premature tool wear or breakage.